Adverse drug reactions: practice question

A Pharmacology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Pharmacology · Adverse drug reactions

Sample item

Which reaction is a predictable type A adverse drug reaction?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. Bleeding from excessive warfarin effect

Type A reactions are dose-related and predictable from known pharmacology, such as excessive anticoagulation causing bleeding.

Option by option

  • A. Anaphylaxis to penicillin

    Anaphylaxis is unpredictable hypersensitivity.

  • B. Bleeding from excessive warfarin effect (correct)

    Correct: warfarin bleeding is dose-related.

  • C. Idiosyncratic hepatitis

    Idiosyncratic hepatitis is type B.

  • D. Stevens-Johnson syndrome

    SJS is an uncommon idiosyncratic reaction.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Pharmacology questions

Questions about this Pharmacology question

What is the answer to this Pharmacology question?

The best answer is B, Bleeding from excessive warfarin effect. Type A reactions are dose-related and predictable from known pharmacology, such as excessive anticoagulation causing bleeding.

Why is "Anaphylaxis to penicillin" not the answer?

Anaphylaxis is unpredictable hypersensitivity.

Why is "Idiosyncratic hepatitis" not the answer?

Idiosyncratic hepatitis is type B.

Why is "Stevens-Johnson syndrome" not the answer?

SJS is an uncommon idiosyncratic reaction.

What concept does this question test?

It tests Adverse drug reactions in Pharmacology. The correct option holds because: Correct: warfarin bleeding is dose-related.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Adverse drug reactions?

Learn drugs as classes, then the exception in each class that an examiner would pick. Then use the flashcards and the other Pharmacology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.